20402223413 has 32 divisors (see below), whose sum is σ = 25397753472. Its totient is φ = 16101734400.

The previous prime is 20402223397. The next prime is 20402223431. The reversal of 20402223413 is 31432220402.

It is a cyclic number.

It is not a de Polignac number, because 20402223413 - 2⁴ = 20402223397 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402223473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4842878 + ... + 4847088.

It is an arithmetic number, because the mean of its divisors is an integer number (793679796).

Almost surely, 2^20402223413 is an apocalyptic number.

It is an amenable number.

20402223413 is a deficient number, since it is larger than the sum of its proper divisors (4995530059).

20402223413 is a wasteful number, since it uses less digits than its factorization.

20402223413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20402223413 its reverse (31432220402), we get a palindrome (51834443815).

The spelling of 20402223413 in words is "twenty billion, four hundred two million, two hundred twenty-three thousand, four hundred thirteen".